#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
   int d;
   cout<<"vvedite den goda: ";
   cin>>d;
   d = d % 7;
   switch(d)
   {
      case 0 :
         {
            cout<<"\nVS";
            break;
         }
      case 1 :
         {
            cout<<"\nPN";
            break;
         }
      case 2 :
         {
            cout<<"\nVT";
            break;
         }
      case 3 :
         {
            cout<<"\nSR";
            break;
         }
      case 4 :
         {
            cout<<"\nChT";
            break;
         }
      case 5 :
         {
            cout<<"\nPT";
            break;
         }
      case 6 :
         {
            cout<<"\nSB";
            break;
         }
   }
    return 0;
}
